Published:2018/01/19 Last Updated:2018/01/19
JVN#26200083
GroupSession vulnerable to open redirect
Overview
GroupSession contains an open redirect vulnerability.
Products Affected
- GroupSession version 4.7.0 and earlier
Description
GroupSession provided by Japan Total System Co.,Ltd. is an open source groupware. GroupSession contains an open redirect vulnerability (CWE-601).
Impact
When accessing a specially crafted page, the user may be redirected to an arbitrary website. As a result, the user may become a victim of a phishing attack.
Solution
Update the Software
Update to the latest version according to the information provided by the developer.
Apply a Workaround
The following workaround may mitigate the effects of this vulnerability.
- Do not access suspicious websites or hyperlinks
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| Japan Total System Co.,Ltd. | Vulnerable | 2018/01/19 |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Base Score:
4.7
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
CVSS v2
AV:N/AC:H/Au:N/C:N/I:P/A:N
Base Score:
2.6
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Credit
Norihiko Hirukawa of FiveDrive Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2017-2166 |
| JVN iPedia |
JVNDB-2018-000003 |